Adding support for .NET Compact Framework V3.5

I have a kernel that builds quite happily. I've been asked to add .Net
Compact Framework V3.5 for a client so I downloaded and installed the January
2008 WinCE 5.0 upgrade then added SYSGEN_DOTNETV35 and did a Sysgen. I now
get the error:
Error: Could not find file
'C:\WINCE500\PBWorkspaces\[device]\RelDir\[device]_ARMV4I_Release\httplite.dll' on disk
httplite.dll
C:\WINCE500\PBWorkspaces\[device]\RelDir\[device]_ARMV4I_Release\httplite.dll
NK SH